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A low cost spacer device used for asthma treatment in a Calcuta street clinic to improve efficacy of metered dose inhalers
Kerac M, Montgomery H, Johnson N
Tropical Doctor 1998 Oct;28(4):228-229
clinical trial
3/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

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